Gravity-roller side bearing.



PATENTS!) 001. 31, 1905.

J. F. OGONNOR.

GRAVITY ROLLER SIDE BEARING.

APPLICATION FILED JULY 6, 1905.

JEAN]? 0 [0/7/7021 ITED STATES PATENT OFFICE.

JOHN F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR TO W. H. MINER COMPANY,OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

Specification of Letters Patent.

Patented Oct. 31, 1905.

Application filed July 6, 1905. Serial No. 268,576.

To all whmn it may concern:

Be it known that I, JOHN F. OCoNNoR, a

citizen of the United States,residing in Chi cago, in the county of Cookand State of Illinois, have invented a new and useful Improvement inGravity-Roller Side Bearings, of which the following is a specification.

My invention relates to improvements in gravity-roller side bearings forrailwaycars.

The object of my invention is to provide a gravity-roller side bearingof a strong, efficient, and durable construction in which the rollersinterposed between the upper and lower bearing-plates will beautomatically kept in central or proper relative position in respect tothe upper and lower bearingplates when the car after passing around acurve again passes onto a straight track, in which the rollers may bekept properly spaced, and in which the rollers will autovmaticallyreturn by their own gravity and that of the load thereon to their normalor central position.

My invention consists in the means I employ to practically accomplishthis object or result that is to say, it consists, in connection withthe upper and lower bearing-plates, one secured to the body-bolster andthe other to the truck, the lower bearing-plate being furnished withreversely-inclined or gravity tracks for the rollers, the tracks for therollers in the upper and lower bearing-plates being preferably curvedabout the king-bolt as a center, of bearing-rollers preferably conicalin form to correspond to the curvature of the upper and lower tracksbetween which they are interposed, a pair of spacers having pivot-studsfitting in the rollers and an intermediate pivot-stud to receive aroller regulating or positioning device, and a roller regulating orpositioning device pivotally connected to said spacerplates and engaginat its upper end the upper bearing-plate and at its lower end the lowerbearing-plate.

Myinvention also consists in the novel construction of parts and devicesand in the novel combinations of parts and devices herein shown ordescribed.

In the accompanying drawings, forming a part of this specification,Figure 1 is an elevation, partly in vertical section, of a roller sidebearing embodying my invention. Fig. 2 is a plan view, partly inhorizontal section. Fig. 3 is a vertical section on line 3 3 of Fig. 2.Fig. 4 is a detail perspective view of the roller regulating orpositioning device, and Fig. 5 is a detail perspective view of one ofthe roller-spacer devices.

In the drawings, A represents the base or lower bearing-blate, the samebeing secured to the truck-bolster, and B is the upper bearing-plate,the same being secured to the bodybo ster of the car. The lowerbearing-plate A is provided with roller-tracks a for the rollers C C.Each of the roller-tracks a is furnished with reverse inclines a a sothat the rollers C C will tend to return to their central or normalposition by their own gravity and by that of the load resting upon them.The roller-track A is preferably curved about the king-bolt as a center,as will be readily understood from Fig. 2 of the drawings. The upperbearing-plate B has a roller-track b, similarly curved about theking-bolt as a center. The bearing-rollers C C are preferably of conicalform to correspond to the curvature of the track about the king-bolt.The bearing-rollers C are each furnished with central holes or bearingsc to receive the pivot-studs d of the spacer plates or devices D D, twoof the same being pref erably employed, one upon the inside and theother upon the outside. The spacers D D are also furnished with middlepivot studs (1, which fit in the pivot-hole f of the roller equalizingor positioning device F, which is thus pivotally mounted on theroller-spacers D. The roller-positioning device F is furnished withapivot or bearingf, which fits in a suitable slot or recess a in the baseor lower bearing-plate A, and with a similar pivot or bearing which fitsin a corresponding slot or recess 6 in the upper bearing or cap plate B.The roller-positioning device F thus connects the upper and lowerbearing-plates, the spacers, and rollers and insures the rollers beingkept in normal position and proper relations to the other parts. Thebase or lower bearing-plate A is provided with a removable guide-plateA, secured thereto by bolts or rivets a and which overhangs theguide-flanges b on the upper or cap plate B. The upper or cap plate B isprovided with depending sides 6 which embrace the spacers D D on eachside, and thus hold the parts in their assembled position. I

I claim 1. In a roller side bearing for railway-cars,

ing-plates, the lower bearing -'plate being furnished with reverselyinclined rollertracks, o1 bearing-rollers interposed between the upperand lower bearing-plates, rollerspacers having pivot-studs fitting inthe rollers and furnished with intermediate pivotstuds, and a rollerregulating or ositioning device pivotally connected to t e spacers, andhaving a pivotal conection at its upper end with the upper bearing-plateand a pivotal connection at its lower end with the lower bearing-plate,substantially as specified.

2. In a roller side bearing for railway-cars, the combination with upperand lower bearing plates, the lower bearing plate being furnished withreversely inclined rollertracks, of bearing-rollers interposed betweenthe upper and lower bearinglates, rollerspacers having pivot studs ttingin the rollers and furnished with intermediate pivotstuds, and a rollerregulating or positioning device pivotally connected to the spacers, andhaving a pivotal connection at its upper end with the upper bearingplateand a pivotal connection at its lower end with the lower bearing-plate,said upper bearing-plate having depending sides embracing therollerspacers, substantially as specified.

3. In a roller side bearing for railway-cars, the combination with upperand lower bearing plates, the lower bearing plate being furnished withreversely inclined rollertracks, of bearing rollers interposed be tweenthe upper and lower bearin -plates, roller-spacers having pivot-studsitting in the rollers and furnished with intermediate pivot-studs, and aroller regulating or positioning device pivotally connected to thespacers, and having a pivotal connection at its upper end with the upperbearing-plate and a pivotal connection at its lower end with the lowerbearing plate, said upper bearing-plate having depending sides embracing the rollerspacers, and provided with guide-flanges, and saidlower bearingplate having guide-plates secured thereto and overhangingthe guide-flanges on the depending sides of the upper bearing-plate,substantially as specified.

4. In a roller side bearing for railway-cars, the combination with upperand lower bearing-plates, of a bearing-roller interposed between thesame, a roller regulating or positioning device connecting the upper andlower bearing-plates and means connecting said positioning device withthe bearingroller, said lower bearing-plate being provided with areversely-inclined track for the roller, to cause the roller to returnto position by gravity, substantially as specified.

5. In a roller side bearing for railway-cars, the combination with upperand lower bearing-plates, of a plurality of rollers interposed betweensaid bearing-plates, a spacer having pivot-studs fitting in the rollersand an intermediate pivot-stud, and a roller regulating or positioningdevice pivotally connected to said spacer and engaging at its upper endthe upper bearing-plate and at its lower end the Ewer bearing-plate,substantially as speci- 6. In a roller side bearing for railway-cars,the combination with upper and lower bearing-plates, of a plurality ofrollers interposed between said bearingplates, a spacer havingpivot-studs fitting in the rollers and an inter mediate pivot-stud, anda roller regulating or positioning device pivotally connected to saidspacer and engaging at its upper end, I

the upper bearing-plate and at its lower end, the lower bearing-plate,said upper bearingplate having depending sides embracing the spacer,substantially as specified.

7. In a roller side bearing for railway-cars, the combination with upperand lower bearing-plates, of a plurality of rollers interposed betweensaid bearing-plates, a spacer having pivot-studs fitting in the rollersand an intermediate pivot-stud, and a roller regulating or positioningdevice pivotally connected to said spacer and engaging at its upper end,

the upper bearing-plate, and at its lower end v the lower bearing-plate,said upper bearingplate having depending sides embracing the spacer andprovided with guideflanges, and said lower bearing-plate being providedwith guide-plates overhangin the guide-flanges on the depending sides 0the upper bearingplate, substantially as specified.

8. In a roller side bearing, the combination with an upperbearing-plate, of a lower bearing-plate provided. withreversely-inclined roller-tracks, a pair of rollers interposed betweensaid upper and lower bearing-plates, spacer-plates connecting saidrollers, and a roller-positioning device pivotally connected to saidspacer-plates, and engaging at its upper end the upper bearing-plate andat its lower end the lower bearing-plate, substan tially as specified.

9. In a roller side bearing, the combination with an upper bearingplate,of a lower bearing-plate provided with reversely-inclined roller-tracks,a pair of rollers interposed be tween said upper and lowerbearing-plates, spacer-plates connectingsaid rollers, and a IIOroller-positioning device pivotally connected to said spacerplates, andengaging at its upper end the upper bearing-plate and at its lower endthe lower bearing-plate, said upper bearing-plate having depending sidesfurnished with guide-flanges and said lower bearing-plate havingguide-plates overhangsaid guide-flanges, substantially as specified.

- JOHN F. OCONNOR.

Witnesses H. M. MUNDAY, PEARL ABRAMs.

